When I bought the roller rockers I bought them on ebay. They were supposed to be aluminum self aligning 1.5s. When I received them the guy told me he was out of the aluminum and had sent stainless steel rollers in place of them. I really didn't want the stainless because of the additional weight, but kept them anyway. Several months later I was looking at them and found that they were 1.6s. It was too late to send them back. I have never used 1.6s in anything, but the Chevy parts dealer told me that the cam could be used with either 1.5 or 1.6 rollers. The best thing I see about them is that they fit underneath my short valve covers with no modification.
I have the stock aluminum heads that I bought from a speed shop that have been rebuilt. I got a good buy on them, someone had them done and never picked them up. I purchased them for the price of the work performed. I really haven't looked at them except to take them out of the crates and put them on the shelf until I get around to putting the engine together. The engine is out of a Caprice State Police car and has cast iron heads.
I have been accumulating parts as I have been able to come across them from time to time at a decent price. I am a disabled Vet and money is getting tighter all the time, so I have to kind of look out for deals. I am building three street rods and not being paid for any of them. Two of them are friends and the other one is mine. Needless to say, mine is the last one to get worked on because of funds.
I may have to put the roller rockers on ebay. I don't want a radical engine. I want to keep the cam, I can't afford to buy anything else now. The Chevy parts guy assures me that this cam will run without a stall converter. Parts for the LT1 are quite a bit more expensive than for a regular 350. I have enough parts to rebuild a couple of 350s.
Even though the tire size calculators say this tire measures 31" tall, it actually measures 29.5" tall. I am kind of glad about that. The used one that I tried on the wheel for fit filled up the wheel well really well, but looking back, was really too tall.
If your Vet had 270s, I should be able to run the 275s, although the 1.6 rollers would probably be it too radical for a forth gear lockup. I know ideally, it would be better to be in the 2000-2250 RPM range around 70 with this transmission. If the cam is too radical I would be able to feel it while in 4th gear lockup. I still have to modify the harness for the LT1 and have the computer reprogramed.
Thanks for looking up the specs on the cam, I appreciate it.

Ed