engine dyno prices???

Lotsa old Precision Tunes had in floor dynos. You might try one of those if you have one close by. Or any similar tune up shop. Only trouble was with most of those, the dyno would only allow so much HP at the rear wheels. I remember the one in Macon I dynoed my 65 Valiant on only measured arond 350 RWHP. My car started smopking the tires on the rollers because they would not take anymore power and I knew it was above 350. If you can find one of those tune up shops, they probably have a flat rate fee for that. I remember I did mine for 49.95.