1B accumulation phase weight

Hey coach I have been following your 1B program and can’t complete the accumulation phase I feel like I can’t use enough weight without gassing.
Ex: 5s 3/4eccentrics
Fr squat 3x5@225
PIF 10sec
Frank squats 3x8 @155
My max fr squat is 345
I know you’ve said 1Bs don’t do well on pause/eccentrics but any ideas are appreciated!

Type Percentage
1B 94%
1A 60%
2B 60%
2A 48%
3 37%