compression
#15
Senior Member
MASTER BUILDER
Join Date: Aug 2003
Location: Big Lake, Minnesota
Posts: 162
Is your 1990 a Gen V block? If it is, I think you will have to find some heads for the Gen V block for the upper water hole alignment. I am not positive, but you will have to check it out.
#19
Senior Member
RACING JUNKIE
Join Date: Jan 2006
Location: La.
Posts: 2,890
Is this a duelly truck by chance :?: I wouldn't touch it if it is, i can guarentee you that the Edelbrock EFI, will not be worth the $2,000.00 over the throttle body. If it's conventual truck, not a duelly, you'd be better off to change the heads, and up the cam a little and stay with the throttle body. I've got a 1993 duelly with 189,000 miles on it and it pulls a 28 ft Haulmark with an over 3,000 lb car all day as fast as the speed limit allows, and will still spin the tires with no load on it, i wouldn't touch it for nothing. It's never had any engine work done too it, but i'm a little surprised that the plastic timing gear hasn't gone out yet.
JMO
Zip.
JMO
Zip.