F-250 4x4 w/ 302 problems
I have a 86 F250 4x4 that i bought second hand that originally came w/ a 351w that was replaced w/ a 302 truck engine before i bought it. The 302 was a 2 barrel carbed slug w/ full emissions. I have since installed a 600 cfm holley 4 barrel on an eldebrock air gap rpm manifold, redid the vac. lines since there was no egr provisions w/ the manifold and the low end is non existant. The engine runs great from mid to top end and gets decent mileage. I guess my true question is,is it really worth spending money on headers, cam, redoing the heads or just investing in building the 460 short block that's bored 30 over that's sitting on an engine stand in my garage? I wanted to put the 460 into the f250 once the 302 died but the 302's low end performance really sucks, and only gets worse with a load. thanks in advance.