[capev86]

my 72 burb has a the original 74,000 mile 307 motor in it with the 2 barrel rochester. i rebuilt the carb and it still isn't quite right yet AND boring. only mods are new plugs, wires, a petronix electronic igntion conversion in the stock distributor, and mobil 1 10w-30 high mileage oil.

i purchased a new 4 row radiator and all the bracketry and planning to do an intake install at the same time since the cooling system will be apart.

parts so far:

Edelbrock performer intake (idle - 5500rpm range)
rochester 750 Q-jet from my dad's '84 350cid burb

parts to get:

Edelbrock q-jet rebuild kit, phenolic float, and hi-po accelerator pump

the carb will eventually go back on the 406sbc we had briefly in my dad's 84 burb when i get to the engine swap on my 72 burb, but for this summer the 307 will be towing the family camper and i want as much performance as i can get without tearing into the engine.

figure the q-jet will give me better low end response (torque), improved fuel economy and another 15-20hp at wide open throttle when the huge secondaries open up.

i prefer the characteristics of the spread bore carbs over square bore. edelbrock reportedly markets q-jet style knockoffs up to 750cfm. i hear a mild 350 will not use over 600, but when towing or in high altitude i'm sure the reserve capacity is handy. that 406 never had trouble and we kept the carb just as it came off the original 350.