Highest flowing sbm heads?

I know this a little off topic but you guys have said mopar guys are cheap skates and if you want to go fast on the cheap buy a chev! Well back in the day in Aus we had most guys were GM crazy or to be correct GMH (Holden) I had a mate and Bewdys mate also that was racing a Holden in the six cylinder class. He blew the motor up after spending a fortune on the set up but he did have a S model Valiant for his tow car. Well he raced the tow car and went faster than his race car. That converted him to mopar and as the early model class was for early holden engines, early falcon and early Valiant ( slant six) engines the national record for that class was held by an FJ holden with sideplater six with triple webers etc and was a light vehicle probably about 2000 lbs and was 15.1 seconds. Well my mate put a 4 barrel and headers and a hot cam in his Valiant and smashed the national record to 13.5 seconds. I had a VJ charger ex police car 265 hemi , 4speed. As a young apprentice earning about 60 bucks a week A guy that wanted to race me had a Holden Torana , my brother bought me a 4 barrel factory manifold and factory headers second hand and I put it on my charger and ran consistent 14.7 s all day long. A fellow who wanted to kick my arse with his holden torana had a 202 engine with triple webbers a monsterous cam that would be spitting fuel out the throats of the carbs at idle and they only weighed about 2000 lbs He raced me and I flogged him, he ran high 15s. Yes there was a fast Holden that held records at the time and he told me he spent five grand on the cyl head at the time and as the average wage in aus for a mech at the time was $150 a week and now we pay the average tradesman about $1500 plus overtime that head job is worth fifty grand in todays money. Hell I changed my engine to a low milage 360, just put 340 pistons in it , a 650 holley and home made headers (i was a nineteen year old apprentice) at the time and ran 13.7 qtrs against hot Falcon 351s and 350 Monaros and would flog them with a car that had a standard cam in it as my mechanic father would not let me put a reground cam in it as he said it destroyed the rocker arm angles and I had to wait until I could source a billet grind from the states which at the time was very hard to get. So my cheap arse mopar would destroy the megabuck builds from GM and Ford. Bewdy remembers this.