69 Chevelle with Camaro rear spoiler?

[Keith Tedford]

I've had two L78 powered cars and the COPO. Combined, about 250K miles. I've ridden in a few other L78 and a couple other COPO Chevelles. None of the L78s that I have had experience with were going to be even a remote threat to the 427. I guess I should stop talking and get the old Chevelle back together. It would be the perfect comparison. Might even be a good magazine article in there somewhere. [img]<<GRAEMLIN_URL>>/wink.gif[/img] As for the spoiler, I don't think so. [img]<<GRAEMLIN_URL>>/frown.gif[/img]

[Salvatore]

The L78's were really hard to beat around this area. They still pretty much dominate the A+B stock classes over the 427 cars. At least around here. The LS6 cars were pretty fast with some carb, distributor work along with headers and a set of 88's. If I remember correctly the good running ones had air bags too. Of the 2 Yenko camaros I knew of and saw run they were ok running cars. One Zl-1 in Bridgeport was pretty slow but we all know why that was. I just like the L78 motor. You can darn near run it like a 302.

[Chevy454]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: [email protected]</div><div class="ubbcode-body">The L78's were really hard to beat around this area. They still pretty much dominate the A+B stock classes over the 427 cars. At least around here. </div></div>
Reckon part of the A+B dominance is due to weight (or lack thereof)?

A wise racer once told me &quot;You ain't gotta tune weight!&quot;

[Salvatore]

yes, a little bit of weight factor but the good stock/superstock motor builders feel that the L78 revs a little higher which seems to make that a factor also. seems like the A/SA camaro's are 427 motors. But the new DP Mopars and Mustangs are making them a non factor lately.

[Chevy454]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: [email protected]</div><div class="ubbcode-body">yes, a little bit of weight factor but the good stock/superstock motor builders feel that the L78 revs a little higher which seems to make that a factor also. seems like the A/SA camaro's are 427 motors. <span style="font-weight: bold">But the new DP Mopars and Mustangs are making them a non factor lately.</span> </div></div>
A lot of that going around...those new combo killers go pretty deep in the alphabet don't they? I know they play all the way down to D in S/S, but wasn't sure on Stock...I think they have a naturally aspirated C/J down to J/SA?

[Keith Tedford]

It's amazing that 45-50 year old technology is even remotely competitive. Imagine a 1925 model T trying to be competitive with a 1965-70 muscle car. Anyone want to let me in on what it takes to make a street L78 quick? I have a 10K mile set of bare 840 heads waiting for whatever it takes. I already have the Ferrea valves. [img]<<GRAEMLIN_URL>>/wink.gif[/img]

[Chevy454]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Keith Tedford</div><div class="ubbcode-body">It's amazing that 45-50 year old technology is even remotely competitive. Imagine a 1925 model T trying to be competitive with a 1965-70 muscle car. Anyone want to let me in on what it takes to make a street L78 quick? I have a 10K mile set of bare 840 heads waiting for whatever it takes. I already have the Ferrea valves. [img]<<GRAEMLIN_URL>>/wink.gif[/img] </div></div>
The fact that there are different classes (based on pounds per horsepower) makes it so different era cars actually *can* compete against each other...or at least that's how it's *supposed* to work, assuming the NHRA and the manufacturer were using honest weight/hp numbers, and not stacking the deck. But that's not happening with the Cobra Jets or the Drag Paks. NHRA went with the absurdly low HP numbers submitted by FoMoCo &amp; Mopar, which means these cars rolled off the transporters waaaay too light and running just shy of 1.0 under the index without even a hint of work, thus bumping a ton of guys with literally *decades* of work on their combos out of the field. And the fact that they're even *allowed* to run is the main rub, as the rule for Stock for what, 40 years now(?), was that the car had to be showroom available to the public, DOT legal and licensable, but neither the C/J nor the DP even come with a vin or can be licensed.