So this is what I have
454 forged internals
Clay smith cam
Hp500 heads
8-3/4 comprsssion
Running 5lbs booste
Single 1050 dominator carb
Dynod 5400 608hp
"No intercoolers-no room for it"

Trying to get more hp out of this set up
Can I safley up the booste to 7-8? If so roughly what kind Hp difference?
Taking off the 1050 and adding dual 750's make a big hp change?
How about taking my 1050 and putting a larger body on it for air?
Any safe hp gains to say going to a 420 or an 871 blower?

More cubs and bigger blower. Send the dominators to Dean Nickerson in Bristol PA and let him work his magic. I my experiance you do not want dual carbs.

Best move I ever made was getting rid of my single carb 250 blowers, and going to twin carb 420 B&M blowers on my 468's. Not only did they pick up a ton of power, they idled better too with twin carbs. I made more power with LESS boost with the 420's as well.

You don't need more cubes. I have been making 800+hp from my blown 468's the past 5 seasons, been on two different dyno's, so its not a dream o meter.

I've dealt with a few sets of blower application carbs from Nickerson. I wouldn't spend a dollar with that guy for carb work. They idled decent, and it pretty much ended there. If you like borderline rattling the rings at cruise speed, and a garden hose type fuel mixture at wot, he's your man.

Thank you
Hey mild thunder I private messaged you my conctact info
Give me a call please when you get a chance

if you can find a decent set of 420s and they're in your budget.. that's a good setup for the 454... bigger than a 6 smaller than an 8... just right for a 454... if you wanna spend the $$$

i could not disagree more,it has been proven that dual carbs distribute the fuel much better.as far as nickerson,he is the last guy i would send a carb to.i am not going to get in a pizzin match with you,just stating facts about dual carbs and opinion about nickerson.

Thanks guys! The hunt is on for 420's!! Please let me know if you guys come across any for sale.