It has the 302 in it. out of tune so im probley putting out as much as power as a v6 right now
The cylinder heads on those cars are super restrictive for those years. That engine when new put out around 140 hp. I had 7 mustang IIs in the 80s. I used to put flat top pistons and pre 1970 windsor heads on em, small cam and 600 vacuum secondary carb. performer intake and headers......woke those old fords up.
We never had a dyno around back then....but mine would put about 8 cars on mustang gts. I thought I had a rocket ship. LOL You can find heads for that car super cheap at the junk yard. get anything pre 70 and you will add at least 75 hp with that bolt on.............well......if tuned with supporting mods any way.