I just purchased a 1988 K1500 Short Stepside, I love the pickup but it is a
bit under powered with the 305. Does anyone know how much extra hp could be
generated with a new carb (looking at Edelbrock 600cfm) new manifold
(probably Performer) and dual exhaust (would like flowmasters with 3" pipe,
Woukld the increase be worth the expense?
you'd get little to no increase and a fair decrease in reliablilty.
GM TBI motors, while not especially powerful ( by todays muscle truck
standards), are as a group, stone axe reliable. you'll gain very
little for several reasons, 1. it's a 305, 2, the cam is tiny
(179/194deg I/E@.050" .350"/.384" lift). 3. the heads are horrible..
the TBI heads went overboard on the "long runners for torque" theory.
4. while full length headers are a good idea, 3" duals are WAAAAAAY
too much pipe for a small block let alone a 305. 2 or 2.25" pipes are
if I were you, I'd buy the edelbrock intake and cam setup for the TBI
motor and purchase a set of full length headers.
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