I'm slowly piecing together parts for my car, and it i have decided on canfield heads because of their high flow numbers, and relitivly low cost. I noticed on their web site that the 220cc intake port heads are only $50 more than the 195. The engine i'm building is going to be a 327 with a miniram setup that i plan on spinning to 7000 rpm only when racing. I think i know the answer to this question(195cc), but want to get other peoples opinions. This car is going to be a daily driver, so would i loose any drivability/gas mileage with the larger intake heads?

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1991 Z28 305 5spd 1LE, TES headers, dual cats, 3 Chamber flowmaster, Comp cams .488/.495 212/218, 187 head castings with bigger valves, self-burned eproms.
All work done by myself, and proud of it!
SOON TO COME 327 Miniram (3/2002) PARTS NEEDED:Titanium valvetrain parts, stud girdles, fluidampnr, miniram, bulletproof bellhousing, MONEY(im in college).
Find a .bin on the internet and want it burned? I'll do it for you!

 

Yeah,I think the 195`s would be better.The 220`s are probably more suited for a 383 or
larger engine.