if i put headers, a 600 cfm carb, eldelbrock performer intake manifold, and a new ignition on a stock 289 (NOT HiPo) how much horspower should it have, can anyone just give me a rough figure? and the engine only has about 1k miles on it


-thanks

 

OK, A "stock" 289 A code was supposed to have 220 Hp, but with todays measurment techniques this only really equates to about 160 -175 hp. If you are talking about RWHP, a C4 loses around 25% and a manual loses around 20%, so you are looking at somewhere between 125 - 140 HP at the wheels. Simply by strapping on a 600 Cfm carby, Ignition, Performer manifold (basically stock) and headers (what exhaust?) you really are only adding aroung 20Hp. (over a stock 4bbl A code)
If your was originally a C code 2 BBL, you are adding more like 30Hp. Regardless, your RWHP would now be somewhere around 145 - 160 Hp. Of coarse this is assuming everything alse is stock. If a better cam has been slipped in there, you would be looking at a little more.

 

so what would it take to make it have around 300 horses?

 

aftermarket heads, headers, a cam around 230/238@.050 or slightly bigger, a single plane intake, and about a 600-650cfm carb. Not just any head either, you need a high velocit high flow port, not a huge 220cc head, more like a 180cc. Its gonna need some rpm too.

 

can u tell me why a singleplane intake instead of a dual plane?

 

ok, i kno ive asked tthise before but if i just put a nice carb,intake manifold, and exhuast system, get the stang painted (which my mustang has been garage kept for about 18 years so its got no rust anywhere, except in the headlight assembley and thats only becuase the headlight was out. but i plan on replacing that with a brand new aassembly) how much will it sell for? can i get 20k out of it possibly?

 

let see pics and specs......

 

unless it's a convertible or a fastback, HECK NO. Unless it is in emaclent condition. All original with very low original mileage and heavily optioned.

 

theres no way to judge without a lot of detailed pics and a lot of specifics on what its got going on.....

 

well it is a fastback, its in great condition, as i said it has virtually no rust, right now its in its original pale yellow paint from 1967, im planning on putting a nice paint job on it though, planning on black with 2 silver stripes. sorry, at the moment i dont have any pics