power valve and jets
 

On a previous thread, someone stated that plugging the power valve on the secondary side of a Holley 4150, and increasing the jet size to 84 was a good setup. Has anyone tried this on a street driven car? Any plug fouling?

Re: power valve and jets
 

That's how I set up all of our Holleys, and no problems here...fyi, I run a 6.5 pv in the front, and a plug in the rear...I think I'm actually at 82 on the rears on our Y-Nova, which has a little less compression than our Camaro...

Re: power valve and jets
 

I've tried it, I got fouled plugs - but nothing some high rpm shifts couldn't cure. I'm not sure it really helped me any... but I like to experiment... (with the car, not like a demo-clinton https://www.yenko.net/ubbthreads/imag...mlins/grin.gif )

Re: power valve and jets
 

May partly depend on plug heat range as well...or, the difference could be a big block vs. a small block! https://www.yenko.net/ubbthreads/imag...mlins/grin.gif

Re: power valve and jets
 

[ QUOTE ]
and a plug in the rear...

[/ QUOTE ]

What size and type of plug is used?

Re: power valve and jets
 

Holley makes a plug that looks like a power valve that plugs the enrichment circuit, probably less than $5.

Re: power valve and jets
 

Actually, I think you are right about the plug heat range, with the R43's they foul, with R45's they don't. When it's just idling from box to the show it tends to build up, then a few runs down the 1320 and it's all 'clean' https://www.yenko.net/ubbthreads/imag...mlins/grin.gif

Re: power valve and jets
 

Wait a minute M. You don't take that Deuce to church anymore? Come on! I bet when Benjamin gets it he will run it like Drew runs his Yenko! https://www.yenko.net/ubbthreads/imag...ns/burnout.gif https://www.yenko.net/ubbthreads/imag...ins/3gears.gif https://www.yenko.net/ubbthreads/imag...iggthumpup.gif Besides BBBenny is thinking about making his ex racecar COPO streetable on occasions!! Yea Benny! https://www.yenko.net/ubbthreads/imag...ns/worship.gif

Re: power valve and jets
 

Of course I take it to church! It just likes to puff a little black smoke sometimes - church is only 1 mile away so it's not even warmed up by the time we arrive https://www.yenko.net/ubbthreads/imag...mlins/grin.gif

I'm beginning to give up hope of seeing you and your FG Z at The Grove or at E-Town doing some of this:

https://www.yenko.net/ubbthreads/imag...ins/3gears.gif

Re: power valve and jets
 

Don't give up hope. I am just lazy! But....you never know. https://www.yenko.net/ubbthreads/imag...mlins/grin.gif