Rochester 2bbl motor recommendations.

[perfconn]

Either EQ or RHS

[stockcar5]

rhs quit making iron heads a while ago. eq hasnt had any sbc performance heads for a while either. I would try to find some used ones or leftover stock somebody may have. if that doesnt work go with the vortec bowtie heads.

[floppyfoot]

We really like our Dart Eagle SS heads.

[fast_crew]

I better go up to the race shop and put .080" head gaskets in the 878 HP 410 ci 16:1 CR sprint car motor...now that I know how to get it up over 900 or so...

[WRH]

I have a new set of EQ hybrid vortec heads on the shelf. $530 plus the ride.

[Spbulldog]

Can you elaborate on How increasing the CR will help get more fuel in the cylinder?

It does....BUT....and I say but because it is a fine line thing . It's STILL limited by the amount of airflow the carb will allow.more compression means tighter squeeze on upstroke which ALSO means more vacuum on the downstroke. More vacuum sucking air in ALSO pulls in more fuel. But it's still only gonna pull as much air /fuel as the carb will allow to flow. And u can only squeeze that air /fuel to the point of most bang for buck. Anything past that point will show no incease.

[nguyenvinh2]

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