[MrPbody]

EM,

First off, a "355" is a 350 Chevy bored .030" oversize. It is not a "stroker". A stroker is an engine that has had the displacement increased by lengthening the stroke. The ONLY way to lengthen the stroke is to change the crankshaft.

12:1 is a popular number "thrown around". It is certainly too high for 93 octane gas (a must for a street-driven car). It's also too high for all but the smallest blowers, unless methynol is the fuel. We keep static compression under 9:1 for engines with REAL blowers.

You need to supply more detail. What are the head castings? (brand, chamber volume, valve and runner size) Any idea the cam specs?

Weiand (say "why-and") is an aftermarket company making intake manifolds and other "bolt on" performance parts. Regarding them, the old saying "You get what you pay for" applies. They are okay, but their technology has lagged behind the "leading" maker (Edelbrock). They ARE less expensive...

Jim