how much horsepower/torque would my 83 305 ho put out to the flywheel. It is freshly rebuilt with a holly 650 carb, edelbrock intake, comp cam, headman hedders with flowmast 3" all the way back. I am also wondering how it would do top speed and in a 1/4 mile. please respond asap, very interested from u experts.

 

What intake and cam? Could be the same as factory, which was 150hp, or could be more. 1/4 mile could be 16's-15's.

 

i know its a comp cam but not to sure what size, makes the idel really lumpy though. I have another question, whats the top speed for a 305 like this?

 

Without specific data, a wild guess would be somewhere in the 15 second range. A bone stock 305 runs 16's. You haven't done anything to make huge power gains.

If you really want to know what it will do in the 1/4 mile, wait until spring and take it to a track to find out.

 

what do you think the top speed is? my speedo going to 140 and i wrap it around easy. im thinking 240?

 

kinda off topic, but what part of canada are you from?

 

manitoba, 240 kms? what is the biggest part to get without breaking the bank to get a bigger bang from my 305.

 

You'll probably be in the 80 MPH range in the 1/4 mile and maybe in the low 90's.

 

lets not forget its a 5 speed standard tranny.

 

My 305 with holley 600, edelbrock performer intake, mild cam, T5 and the crapest 2.5" exhaust on earth (bodged onto the back of the standard y pipe bodged onto some unkown shortys) runs 15.2 at 92mph. I really need to get that exhaust sorted...

 

If you start making any real horsepower and put a set of sticky tires on it, be prepared to spend some money on it. There was a reason they never put these behind a 350 in these cars. I broke mine with a simple 305 that was running high 13's.