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Tony Curcio · 01-21-2009, 11:41 PM

The NHRA Blueprint Specs for 1968 through 1971 200 HP 307's require .002" minimum deck height and .018" min. gasket thickness, or any combination thereof that yields .020.

This is your clearest limitation.

With a 2-barrel, it may not pull to 6000 RPM anyway.

01-21-2009, 11:41 PM	#7
Tony Curcio Member Join Date: Mar 2002 Location: West Chester, PA Posts: 271 Likes: 1 Liked 4 Times in 1 Post	Re: piston to head clearance The NHRA Blueprint Specs for 1968 through 1971 200 HP 307's require .002" minimum deck height and .018" min. gasket thickness, or any combination thereof that yields .020. This is your clearest limitation. With a 2-barrel, it may not pull to 6000 RPM anyway. __________________ Tony Curcio 1860 STK