Power advantage between Ford 351, Mopar 340 and Chevy 350??
And that begs for more Pro Stock fun... As was mentioned earlier.. The rules were continually changing to try to "Level" the playing field.. Read "Level" as "Give GM an Advantage" In the first years of Pro Stock the Hemi was unbeatable... So NHRA kept increasing the Weight Factor per CI on the Hemi till it couldn't compete.... The were guys destroking Hemi's down to 396 CI.. But it was a losing battle...
Grumpy/Rehr & Morrison/Allen... The GM crew was dominating... Then a few guys joined the Ford camp like Dyno Don (who raced Chevies till he saw a loophole) & Bob Glidden cause the weight factor on the 351C was equal to the chevy but the heads had more potential... So the faster the Fords went the more weight NHRA tacked on.... And the Fords kept getting faster in spite of the weight for a few years but eventually the weight penalty was to great... In 78 Bob won the NHRA Pro Stock Championship...
And somehow Chrysler was able to pull Bob off to the side & offered him lots of cool toys.. But more importantly told him NHRA wasn't paying attention to the Mopar small block & they had some new heads that were a game changer.... And Bob liked slipping under the radar due to rules that were behind the curve...
In 79 Glidden showed up with his lil Arrow & dominated... So NHRA tacked some weight on.. & Bob just went faster... In 79 NHRA added weight three times... In 80 Bob showed up again with the Arrow, but three races in he went back to his Fairmont in spite of NHRA's efforts still had a winning season eventually winning the championship for the third straight year...
On another subject oiling system weakness of Ford 351C or most Fords for that matter... True.... But have you seen the mods done to a serious race effort on a small block Mopar to improve oiling?
Plenty of engine have weak points... The guys who find them & fix them are the guys who win races...