| Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | If one can get cool outside air rather than hot air preheated by the radiator, engine will be more efficient and less chance of pinging when under load. It will not look exactly original, so if that is ones goal, keep it original.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
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