ok...what im now assuming is it IS in fact a 1973 307 with 115 bhp....

they only ever made 2 CHH letters.

1st is the above mentioned coming with a TH trans

2nd is a 1978 350 170 bhp with an auto trans

ok....

so.... this engine in the car reads CHH on the engine and it has a TH350 trans.

therfore it HAS to be the 307 right?

However....ive just got onto the bloke who sold me the car and he told me that because the camaro was originally a 4.1 straight 6 with a th350 trans

so he said this bolted straight on to the V8...now i am confused!!!