Re: Gas Cap for '70 Nova
 

Grady Thanks. My internet was down last eve, sorry I did'nt get back to you sooner. Great pictures. See if you can jog Mike's memory on the fix he used to modify the next and or cap to allow a suitable fit.

Re: Gas Cap for '70 Nova
 

the replated cap has the embossed letters vs the new nos caps are stamped - i believe this is the same for camaro.

Sam, id replate your cap - but still need to solve the vent issue..

Re: Gas Cap for '70 Nova
 

In 1970 there were 3 different Nova tanks.

A. the 68 - mid 1970 straight neck vented (used at least until Jan 1970)
B. the 1970 angled neck vented
C. the 1970 angled neck with EEC

Looks like a mid year change even though Quanta only lists the angled neck for 1970. And they used the same picture for the B and C and the 1971-1972 Nova.

Which vented tank is causing the problem? Straight or angled?

Grady yours should be a straight neck.

At first I noticed occasional high pressure in my original tank with a after market cap. This was not there with the original. But does seem to be going way with time.

I am having the original replated for other Nova.

Greg

Re: Gas Cap for '70 Nova
 

Greg , Yes my tank has a straight neck. The only thing I thought would be the same as 70 was the ring for the gas cap. https://www.yenko.net/ubbthreads/imag...lins/dunno.gif Grady