hey guys im running a fairly stock 253 in my vh sle it b4 i bought it it had gas heads put on 2 it does that mean that i can run premium unleaded in my car wif out using a lead additive??

Probably, however you should really check with the manufacturer of the heads (Yella Terra?) for the exact specs I guess.

yeh see thats the thing i fink they were from a wreckers or sumfing coz they r light blue in color and the got like white texta on a bit saying vc comm why would sum 1 put vc heads on a vh for...?

The VC and the VH both have "blue" motors, the VC has the XT5 blue motor and the VH has the XT6 blue motor. I'm guessing that the heads are interchangeable. Perhaps PM ITSGMH as he is the V8 man around here and he may be able to suggest if PULP suitable or not. Cheers.

If your using something like optimax you may want to change your jets in the carborettor as i've been lead to believe running the high octane premiums (98 ron) makes the car run rich.

if the heads have been done up for gas (gas is dry) then they should have stronger valves and seats than standard heads and so I would think that they would give reasonable service life running unleaded fuel without additive. If u use pulp then u could advance the timing a little to take advantage of the extra octane but don't run standard ulp if u do this.