head swap

[72 350]

Hey everybody I'm going from 2.02 camel humps to 190cc patriots any ideas on gain in power/et's

[lxtasy]

Cam?
Power adder?
Cubic Inch?
Intake?
Exhaust?
Carb size?

More variables than just going from one head to the next.

[alan johnson]

+20 or so cc on the intake side and a much better combustion chamber. i'll go out on a limb
and say 25-30hp

[72 350]

Sorry its a 355 comp cam hyd mag 305dur 525 lift roller rockers weind xcelerator intake 830 holley tci 3500 stall 350 turbo 4.11 rear msd ign ran 12.60's with the camel humps trying to hit 11's

[434 smallblock]

I will run faster with a smaller carb

[lxtasy]

I will run faster with a smaller carb

x2. I assume you are running pump gas also

[72 350]

Yes pump gas

[mytmouz]

I'd say 2 tenths, if no other changes...

[434 smallblock]

I will run faster with a smaller carb

I am not being smart with this post just i have ran a simaler combo that needed less carb

[lxtasy]

my 355 I had in the black truck ran best on a 650 carb but could run on a 750 that was jetted way down. Ran better with less carb. Was a pump gas motor

[72 350]

cool thanks for the feedback

[ftsmoot58]

Are the humps for sale if so let me know

[bluehair]

I am not being smart with this post just i have ran a simaler combo that needed less carb

x2 I used to run a 355 with vortec heads on a 750 jetted way down , tried 850 and it fell on its face off the line

[72 350]

I couldn get hesitation out of mine with 750 went to 830 same not as bad changed bigger squirters and diff pump cam and fixed it I don't let it sit and idle too much afraid to
Load up foul plugs but off the line no problem how I don't know I know it sounds crazy

[bigfoot385]

I couldn get hesitation out of mine with 750 went to 830 same not as bad changed bigger squirters and diff pump cam and fixed it I don't let it sit and idle too much afraid to
Load up foul plugs but off the line no problem how I don't know I know it sounds crazy


I have a 650 with a 50cc pump on the front on my 355. Works Great!!

[bluehair]

I couldn get hesitation out of mine with 750 went to 830 same not as bad changed bigger squirters and diff pump cam and fixed it I don't let it sit and idle too much afraid to
Load up foul plugs but off the line no problem how I don't know I know it sounds crazy

how much did you upsize the squirters and pump?

[72 350]

Still 30cc accel pumps front and back just changed squirters and cam on pump linkage and I can't remember its being rebuilt right now or I would check

[72 350]

What's your best time with the 355 with vortecs