i plan on adding a weiand 142 to my mildly built 307 (specs below) but i have a few questions first



how much boost could i run with my setup safely (i planned on running small pulley ratios like 1.95:1 or 2.11:1)

would i need to change carbs or do any mods

would this make decent torque on my motor

i know its not going to fit under my SS hood.... is it gonna fit under a 4" cowl?





fresh rebuild
882 heads
crane 274h cam
torker II intake
holley 650
longtube headers

 

What compression ratio are you at? Could you post the cam specs? A double pumper carb works better on a roots application. My old motor in my Impala was a 377 stroker with a 850 double pumper, Weiand 177 blower. I built that motor at 9:1 compression and ran 7 psi.

 

idk exactly what compression im at but i know its low desktop dyno said around 9:1 but i think its lower due to the small bore and big chambers but the cam specs are .450/.450 and 218dur at .50 i cant remember the LSA