water pump pulley question

dano said
Larger crank pulley would do the same thing, if there is room. What year is your car/engine? Pulleys changes in 70 on small blocks, not sure on /6 or B/RB.

I was thinking about that too...but I think I'll skip that and do what I should have done and get a shroud made and if that doesn't help maybe get an electric fan. It's great going down the road but as soon as you stop it gets bad. I should watch at the next car show when someone starts one up and see how fast they turn

1970 340 in a 69 Dart
Anti pump-Up lifters
Ground and drilled rods
Speed pro forged pistons
ported 2.02 J heads
Comp Cam 488/491
750 Holley mechanical secondaries
Edelbrock Airgap intake
Doug’s Ceramic Headers
Super 44 Flow Masters
Exhaust 2 1/2"
727 with 2200 –2400 converter
8 3/4 Dif with 3.55 Eaton trutrac
HP haven't a clue