Moparts Tech Archive
I have my reasons for what I say but if you insist here's an exciting picture of a stock 360 bowl with 1.88 intake
Now that you are feeling confident & have grinder in hand ( dangerous weapon with some ), you carefully grind away this excess metal to this point
Here's a shot showing the 45 degree cut, which is about 0.040 wide, be very careful not to damage this area while working in the port, if you look carefully enough you can see the 60 degree cut outline
After a bit of goofing around maybe it will look something like this, it's a 318 bowl but I thought it looks pretty..LOL !
Further note, don't get adventurous with the short turn, just take the excess metal away VERY carefully & get a nice even smooth conture of the short turn, using sanding rollers
Just looking at this stock 360 port again, you can see at the base of the guide there's a tail or hump of casting that swings to the right, it's quite generous in thickness as is the guide boss itself, taking metal from these areas helps, you can take that hump right out flush with the roof but on the opposite end intake port that has the short head bolt, you could get daylight through the roof near the guide because the bolt seat on top of the runner is cut quite deep, so it will probably be best to leave some of that hump there & play safe, I make a metal plug for mine & use a longer head bolt, then tack a dab of cast iron weld on the plug, though you could probably use a thicker washer & pack epoxy around it, if you wanted to go that far that is.