I'm looking into buying a 91 RS with a swapped in 350. But apparantly the owner doesn't know it's year or specs. What he can tell me is that it's a 350 with a 650 Holly Aluminum Intake mated to a 4 speed transmission. Does anyone have any educated guesses/information about this engine? Would anyone be able to tell from a picture?
If so, please let me know.

Any help would be greatly appreciated, thanks.

 

Do a search on here or General tech/engine about engine id numbers/casting numbers, if you get the casting number there is a site you can go to that will tell you what engine it is. The #'s are located either on the back of the engine just above the bellhousing flange and just in front of the passenger side cylinder head on the block.

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89 RS 350 TBI auto