The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - How about some pics of High Performance haulers.

jgh64pkup · 12-20-2009, 04:33 PM

im 15

dont use the 283 heads they have tiny valves
i have ported and polished 283 power pack heads now and they are robbing power
get some decent heads small combustion chambers not too small or you cant run pump gas and big vlaves 1.94 or bigger
what headers (down tube size and collector size)
what cam do you have?
what pistons do you have?
have you been into the engine?

12-20-2009, 04:33 PM	#262
jgh64pkup Sunburst C10!!! Join Date: Jan 2009 Location: Texas Posts: 2,560	Re: How about some pics of High Performance haulers. im 15 dont use the 283 heads they have tiny valves i have ported and polished 283 power pack heads now and they are robbing power get some decent heads small combustion chambers not too small or you cant run pump gas and big vlaves 1.94 or bigger what headers (down tube size and collector size) what cam do you have? what pistons do you have? have you been into the engine? __________________ Gage 1967 C10 Shortbed Stepside Last edited by jgh64pkup; 12-20-2009 at 04:35 PM.