76- 4oo engine Can i get 500-550HP stock exhaust

Hi Eric ,If i had 5500 i wouldnt even hesitate because i know how much it costs to build ,I just finished my 408 w2 headed 580 hp it costed me a ton , I am just going very slow with this because of money ,Thanks


Cracked- its the car in my sig i would think it weighs about 3200 at the most I have fiberglass hood,Bumpers,no back seat, does have 6 point,mini altrnator, a-100 seats w/Aluminum brackets ,Manual steering that should have the weight down a little bit